This part is a kind of semiconductor called K2312.

Function of this product has 2SK2312.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

2SK2312 TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (L −π−MOSV) 2 2SK2312 Chopper Regulator, DC−DC Converter and Motor Drive Applications z 4-V gate drive z Low drain−source ON resistance z High forward transfer admittance z Low leakage current z Enhancement mode : RDS (ON) = 13 mΩ (typ.) : |Yfs| = 40 S (typ.) Unit: mm : IDSS = 100 μA (max) (VDS = 60 V) : Vth = 0.8 to 2.0 V (VDS = 10 V, ID = 1 mA) Absolute Maximum Ratings (Ta = 25°C) Characteristics Drain−source voltage Drain−gate voltage (RGS = 20 kΩ) Gate−source voltage Drain current DC (Note 1) Symbol VDSS VDGR VGSS ID IDP PD EAS IAR EAR Tch Tstg Rating 60 60 ±20 45 180 45 701 45 4.5 150 −55 to 150 Unit V V V A A W mJ A mJ °C °C Pulse (Note 1) JEDEC JEITA TOSHIBA ― SC-67 2-10R1B Drain po [ ... ]

K2312 PDF Datasheet Download